3M 36181 400 Grit Hookit™ Blue Multi-Hole Abrasive Disc (6 Inch, 50 Count) is a professional-grade sanding disc designed for surface refinement and primer preparation in automotive collision repair applications. The 400 grit precision abrasive delivers a uniform scratch pattern, making it ideal for primer sanding and panel preparation prior to sealer or topcoat application. Engineered with a multi-hole pattern for enhanced dust extraction when used with compatible vacuum-assisted sanding systems, the disc helps reduce loading and improve overall sanding efficiency. The Hookit™ hook-and-loop backing allows for quick attachment and easy removal from standard 6-inch random orbital sanders.
Key Features
- Abrasive: Ideal for primer sanding and surface refinement
- Design: Supports improved dust extraction with vacuum systems 6 in
- Diameter: Compatible with standard 6-inch random orbital sanders
- Backing: Enables fast disc changes and secure attachment
- Abrasive: Designed for durability and consistent performance 50
- Pack: Suitable for professional shop use
Frequently Asked Questions
What pad do I need for Hookit discs?
Use a 6-inch Hookit (hook-and-loop) backing pad like the 3M 05776.
What’s the difference between Hookit and Stikit?
Hookit uses hook-and-loop (Velcro-style) attachment — discs can be removed and reattached. Stikit uses PSA adhesive (single-use). Hookit is preferred for frequent grit changes.
How many discs in a pack?
Each pack contains 50 discs.
